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Proceedings Paper

New improvements for Brillouin optical time-domain reflectometry
Author(s): Sébastien Le Floch; Florian Sauser
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Paper Abstract

This paper presents new techniques designed to improve the performances of a BOTDR. The first one introduces a second pump to the sensor, thus doubling the Brillouin signal on the receiver. The second one uses image processing with a two-dimensional Gaussian filter whose parameters are defined. The last technique explores the possibilities offered by colour codes. The benefits of each, in terms of signal-to-noise ratio, is presented by comparing measurements over a distance range of 50km with a spatial resolution of 5m. These techniques can easily be combined and the global improvement is estimated at 10dB, compared to conventional sensors.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103230L (23 April 2017); doi: 10.1117/12.2261943
Show Author Affiliations
Sébastien Le Floch, Haute Ecole Arc Ingénierie (Switzerland)
Florian Sauser, Haute Ecole Arc Ingénierie (Switzerland)

Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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